热带作物学报2011，Vol.32Issue(1)：46-49,4.DOI:10.3969/j.issn.1000-2561.2011.01.009
少核'年桔'的辐射育种研究
Mutation Breeding for Citrus reticulata Blanco of Few Seeds
摘要
Abstract
Mature autumn shoots were taken from the adult ‘Nianju’(Citrus reticulata Blanco)trees and the leaves of the shoots were stripped. The shoots were irradiated with gamma rays from 60Co at the dosage of 0,4,6 and 8 kR.The survivor rates were 93.2％, 68.4％,41.3％ and 16.5％ for the 0,4,6 and 8 kR treatment, respectively. The plantlets were grown in the orchard in May of 2006.Through fruit investigation for 2 years, 4 few-seeded mutants of good characters were screened.The seed contents of the 4 few-seeded mutants were 3.3～6.6 seeds/fruit, which were remarkably less than 17.6 seeds/fruit of the control. The pollen alive rates of the 4 few-seeded mutants were 45.5％～68.8％, and pollen germination rates were 11.8％～16.7％, which were obviously lower than 97.3％ and 54.1％ of the control respectively. One of the main causes producing few-seeded fruit was higher rate of pollen abortion.关键词
少核年桔/诱变育种/花粉败育Key words
Few-seeded/ Mutation breeding/ Pollen abortion分类
农业科技引用本文复制引用
唐小浪,马培恰,吴文,黄永敬,王平,黄炽文,肖蔓洪,陈国添..少核'年桔'的辐射育种研究[J].热带作物学报,2011,32(1):46-49,4.基金项目
广东省农业攻关项目(2007A020200003-4). （2007A020200003-4）
